<!doctype html>
<script src="code/journal.js"></script>
<script src="code/chapter/04_data.js"></script>

<body><script>
for (let event of journalEvents(JOURNAL)) {
  let correlation = phi(tableFor(event, JOURNAL));
  if (correlation > 0.1 || correlation < -0.1) {
    console.log(event + ":", correlation);
  }
}
// → brushed teeth: -0.3805211953
// → work:          -0.1371988681
// → reading:        0.1106828054
</script></body>